Calculate hyperbolic sine in Java

//from  w  ww  . j  a  v  a 2s.  c  om
public class Main {
  public static void main(String[] args) {
    // Obtain angle in degrees from user
    double degs = 20d;
    // Convert degrees to radian
    double rads = Math.toRadians(degs);
    
    // Calculate hyperbolic sine
    double sinHA = (Math.exp(rads) - Math.exp(-rads)) / 2;
    System.out.println("Hyperbolic sine = " + sinHA);
    
  }
}